/* FAQ 页面专属样式 */
.page-faq {
  --faq-grid-line: rgba(57, 255, 20, 0.055);
  --faq-line: rgba(255, 255, 255, 0.14);
  padding-bottom: 80px;
}

.page-faq .breadcrumb {
  margin-bottom: 20px;
}

.page-faq .faq-hero {
  position: relative;
  padding-top: 16px;
  padding-bottom: 32px;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--faq-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--faq-grid-line) 1px, transparent 1px);
  background-size: 32px 32px;
  -webkit-mask-image: linear-gradient(135deg, rgba(0, 0, 0, 0.9), transparent 75%);
  mask-image: linear-gradient(135deg, rgba(0, 0, 0, 0.9), transparent 75%);
}

.page-faq .faq-hero-grid {
  position: relative;
  display: grid;
  gap: 24px;
}

.page-faq .faq-hero-copy h1 {
  margin: 16px 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-style: italic;
  letter-spacing: -0.5px;
  font-size: clamp(28px, 6vw, 52px);
  line-height: 1.12;
}

.page-faq .faq-hero-copy .lead {
  margin: 0 0 20px;
  color: var(--text-dim);
  font-family: var(--font-body);
  max-width: 56rem;
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-hero-figure {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--primary-deep);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

.page-faq .faq-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .faq-search-section {
  margin-top: 12px;
}

.page-faq .faq-search-box {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 16px;
}

.page-faq .faq-search-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  color: var(--accent-green);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
}

.page-faq .faq-search-input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: 0;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 15px;
  padding: 8px 0;
  outline: none;
}

.page-faq .faq-search-input::placeholder {
  color: rgba(160, 174, 192, 0.7);
}

.page-faq .faq-filter-empty {
  margin-top: 12px;
  padding: 16px;
  border: 1px dashed var(--accent-orange);
  color: var(--text-dim);
  font-family: var(--font-body);
}

.page-faq .faq-filter-empty[hidden] {
  display: none;
}

.page-faq .faq-hot-section {
  margin-top: 56px;
}

.page-faq .faq-category-section {
  margin-top: 64px;
}

.page-faq .section-head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}

.page-faq .section-head-copy {
  display: grid;
  gap: 4px;
}

.page-faq .section-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 900;
  font-size: 26px;
}

.page-faq .section-head-copy p {
  margin: 4px 0 0;
  color: var(--text-dim);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.6;
}

.page-faq .section-index {
  font-family: var(--font-mono);
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
  color: var(--accent-orange);
}

.page-faq .section-kicker {
  display: inline-flex;
  color: var(--accent-green);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.page-faq .faq-hot-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-faq .faq-hot-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent-orange);
  border-radius: 4px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 15px;
  text-decoration: none;
  transition: background 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
}

.page-faq .faq-hot-card::after {
  content: "→";
  color: var(--accent-green);
  font-family: var(--font-mono);
  font-size: 18px;
}

.page-faq .faq-hot-card:hover,
.page-faq .faq-hot-card:focus-visible {
  background: rgba(57, 255, 20, 0.08);
  border-left-color: var(--accent-green);
  transform: translateX(4px);
}

.page-faq .faq-category-sub {
  margin-top: 8px;
  color: var(--text-dim);
  font-family: var(--font-body);
}

.page-faq .faq-category-block {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.page-faq section[id],
.page-faq .faq-category-block[id],
.page-faq details[id] {
  scroll-margin-top: 100px;
}

.page-faq .faq-category-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.page-faq .faq-category-id {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 52px;
  height: 28px;
  padding: 0 8px;
  background: rgba(255, 106, 0, 0.14);
  border: 1px solid rgba(255, 106, 0, 0.35);
  color: var(--accent-orange);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
}

.page-faq .faq-category-title h3 {
  margin: 0;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 900;
  font-size: 22px;
}

.page-faq .faq-items {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  background: var(--surface);
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--accent-orange);
  border-radius: 6px;
  overflow: hidden;
  transition: border-color 0.25s ease;
}

.page-faq .faq-item[open] {
  border-left-color: var(--accent-green);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  list-style: none;
  cursor: pointer;
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 700;
}

.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item summary::marker {
  content: "";
}

.page-faq .faq-item summary:hover {
  background: rgba(57, 255, 20, 0.05);
}

.page-faq .faq-q-badge {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(255, 106, 0, 0.16);
  border: 1px solid rgba(255, 106, 0, 0.4);
  color: var(--accent-orange);
}

.page-faq .faq-q-badge svg {
  display: block;
  width: 14px;
  height: 14px;
}

.page-faq .faq-q-title {
  flex: 1;
  min-width: 0;
  font-size: 15px;
  line-height: 1.4;
}

.page-faq .faq-q-toggle {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  color: var(--accent-green);
  font-family: var(--font-mono);
  font-size: 18px;
  transition: transform 0.25s ease;
}

.page-faq .faq-item[open] .faq-q-toggle {
  transform: rotate(45deg);
}

.page-faq .faq-answer {
  padding: 0 16px 16px 54px;
}

.page-faq .faq-answer p {
  margin: 0;
  color: var(--text-dim);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.7;
}

.page-faq .faq-item[open] .faq-answer {
  animation: faqFadeIn 0.3s ease;
}

@keyframes faqFadeIn {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-faq .faq-category-layout {
  display: grid;
  gap: 20px;
  margin-top: 16px;
}

.page-faq .faq-flow-figure {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--primary-deep);
  overflow: hidden;
}

.page-faq .faq-flow-figure img {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .faq-support-section {
  margin-top: 72px;
}

.page-faq .faq-support-card {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 24px;
  padding: 28px 24px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 16px;
  background:
    linear-gradient(150deg, rgba(255, 106, 0, 0.14), transparent 38%),
    linear-gradient(30deg, rgba(57, 255, 20, 0.08), transparent 45%),
    rgba(255, 255, 255, 0.04);
}

.page-faq .faq-support-head {
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-faq .faq-support-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 900;
  font-size: 26px;
}

.page-faq .faq-support-main > p {
  margin: 14px 0 20px;
  color: var(--text-dim);
  font-family: var(--font-body);
  max-width: 48rem;
}

.page-faq .faq-support-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-support-aside {
  display: grid;
  gap: 12px;
}

.page-faq .faq-support-note {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 16px;
  background: rgba(10, 31, 68, 0.6);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.page-faq .faq-support-key {
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-faq .faq-support-note strong {
  color: var(--accent-green);
  font-family: var(--font-mono);
  font-size: 14px;
}

@media (min-width: 768px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.95fr);
    align-items: center;
    gap: 40px;
  }

  .page-faq .faq-hot-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-faq .faq-category-layout {
    grid-template-columns: minmax(0, 1fr) minmax(240px, 300px);
    align-items: start;
    gap: 28px;
  }

  .page-faq .faq-flow-figure {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-support-card {
    grid-template-columns: 1fr 300px;
    gap: 40px;
    align-items: center;
    padding: 40px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-hot-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item[open] .faq-answer {
    animation: none;
  }

  .page-faq .faq-hot-card,
  .page-faq .faq-q-toggle {
    transition: none;
  }
}